Federal Project Grant Award Summary

Indiana University received a $313,808 Project Grant from the National Science Foundation (NSF) Division of Environmental Biology under the Biological Sciences program (CFDA 47.074), awarded September 1, 2026, with completion scheduled for August 31, 2029. This collaborative research project investigates belowground resource partitioning mechanisms in tree biodiversity and ecosystem function relationships, specifically examining whether and how tree roots, root structures, trait characteristics, and associated microbial partners facilitate more efficient water and nutrient sharing in mixed-species forests compared to monocultures. The research leverages North America's longest-running large-scale forest biodiversity experiment and employs three complementary methodological approaches: ground-penetrating radar and advanced imaging tools to map root distributions, isotopic tracers to quantify differential water and nitrogen uptake, and detailed root morphological trait measurements combined with genetic identification of mycorrhizal fungi.

The deliverables include direct measurements and empirical findings on belowground resource partitioning, advancing understanding of forest productivity mechanisms critical for predicting future forest conditions and designing effective reforestation strategies. The project also delivers significant workforce development and public engagement products, including training of undergraduate interns, graduate students, and a postdoctoral researcher; development of K-12 curriculum in partnership with the Smithsonian Learning Lab; interpretive exhibits for public outreach; and a workshop for forest restoration practitioners. These outputs collectively advance both fundamental ecological science and applied knowledge for forestry and conservation practitioners.